SUSE: 2019:1924-1 important: the Linux Kernel (Live Patch 31 for SLE 12 SP1)
Summary
This update for the Linux Kernel 3.12.74-60_64_104 fixes several issues. The following security issues were fixed: - CVE-2019-11477: Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. (bsc#1137586) - CVE-2019-11478: Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. (bsc#1137586) This update contains a regression fix for CVE-2019-11477 and CVE-2019-11478 (bsc#1140747). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server for SAP 12-SP1: zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-1923=1 SUSE-SLE-SAP-12-SP1-2019-1924=1 SUSE-SLE-SAP-12-SP1-2019-1925=1 SUSE-SLE-SAP-12-SP1-2019-1926=1 - SUSE Linux Enterprise Server 12-SP1-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-1923=1 SUSE-SLE-SERVER-12-SP1-2019-1924=1 SUSE-SLE-SERVER-12-SP1-2019-1925=1 SUSE-SLE-SERVER-12-SP1-2019-1926=1 Package List: - SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64): kgraft-patch-3_12_74-60_64_104-default-8-2.1 kgraft-patch-3_12_74-60_64_104-xen-8-2.1 kgraft-patch-3_12_74-60_64_107-default-8-2.1 kgraft-patch-3_12_74-60_64_107-xen-8-2.1 kgraft-patch-3_12_74-60_64_110-default-4-2.1 kgraft-patch-3_12_74-60_64_110-xen-4-2.1 kgraft-patch-3_12_74-60_64_99-default-10-2.1 kgraft-patch-3_12_74-60_64_99-xen-10-2.1 - SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64): kgraft-patch-3_12_74-60_64_104-default-8-2.1 kgraft-patch-3_12_74-60_64_104-xen-8-2.1 kgraft-patch-3_12_74-60_64_107-default-8-2.1 kgraft-patch-3_12_74-60_64_107-xen-8-2.1 kgraft-patch-3_12_74-60_64_110-default-4-2.1 kgraft-patch-3_12_74-60_64_110-xen-4-2.1 kgraft-patch-3_12_74-60_64_99-default-10-2.1 kgraft-patch-3_12_74-60_64_99-xen-10-2.1
References
#1137597 #1140747
Cross- CVE-2019-11477 CVE-2019-11478
Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP1
SUSE Linux Enterprise Server 12-SP1-LTSS
https://www.suse.com/security/cve/CVE-2019-11477.html
https://www.suse.com/security/cve/CVE-2019-11478.html
https://bugzilla.suse.com/1137597
https://bugzilla.suse.com/1140747